Allen-Bradley 1756-IB16 is a 16-point DC input module for the ControlLogix 1756 I/O system that accepts 24V DC digital signals. Installed in a 1756 I/O chassis, it provides 16 input points that translate external 24V sources into PLC-readable boolean status for the controller. In automation applications, it monitors field devices such as sensors and switches and feeds the ControlLogix processor with real-time input data.
